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Colognathus
''Colognathus'' is a genus of extinct reptile from Late Triassic rocks of the southwestern United States. It was described in 1928 from a jaw fragment by Case, who interpreted the new taxon as a fish. The type species is ''C. obscurus.'' Approximately 25 specimens have been found as of 2007.〔 A great many of the reptile's fossils are from the Tecovas Formation of western Texas. Other finds of ''Colognathus'' were from places such as the Palo Duro Canyon (in western Texas) and the Santa Rosa Formation (in New Mexico).〔 One tooth is known from the Blue Mesa Member of the Chinle Formation at Petrified Forest National Park, Arizona ==Classification== Researchers have classified ''Colognathus'' as a reptile, although its lower-level classification remains uncertain.〔 It is thought to be a procolophonid.〔
抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)』 ■ウィキペディアで「Colognathus」の詳細全文を読む
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